Mouthpipe

Hand-hammered one-piece bell

A one-piece bell has an axial (lengthwise) seam, making it a continuous extension of the instrument's material. This results in pure, uniform resonance and superior tone. A hammered gold brass bell produces a slightly more broad and rich, yet perfectly-balanced tone with quick response and extra presence due to advanced manufacturing techniques.

Hand-lapped valves and tuning slides

Hand-lapping slides and valves ensures an absolutely perfect fit and seal between the slide parts. Such a perfect fit helps to achieve smooth air flow and smooth action and improve the response and intonation of the instrument.

Rotary valves

The YBL-622 has two hand-lapped large rotary valves to ensure less resistance and quicker response in the "F" section. The 2nd rotor detaches to create a single rotor instrument.

Semi-open wrap

The open wrap design of the YBL-622 improves the response and feel of the instrument.